Introduction Of Dw35 Underground Coal Mine Supporting Safe Operation Of Assured Products Acrow Prop Hydraulic Props
DW single hydraulic prop is constant resistive pillar, which can match with a variety of roof beams and also could be used as the primary column. Mechanized coal mining for coal generally or blasting mining face plate supporting items are also available for mechanized coal face end support or other temporary support to use.
DW single hydraulic prop with metal hinged roof beams for general mechanized coal mining face gun and mechanized mining face ends with a roof or temporary payment for coal seam angle is less than 25 ° of face, to take certain measures, also can be used to dip 25 ° - 35 ° stopes. This series of hydraulic prop, good stability, technical performance advantages prominent, high-grade coal mining face will be the single support height from 2.5 meters to 3.5 meters, 3.5 meters below the coal mining can achieve one full-height, while for the coal seam thickness of 4.5 m below provides end face and advance support.zmwm11
Parameter of Dw35 Underground Coal Mine Supporting Safe Operation Of Assured Products Acrow Prop Hydraulic Props
Type |
Unit |
DW35 |
DW31.5 |
DW28 |
DW25 |
DW22 |
DW20 |
DW18 |
DW16 |
DW14 |
DW12 |
DW10 |
DW08 |
DW06 |
Max Height |
mm |
3500 |
3150 |
2800 |
2500 |
2200 |
2000 |
1800 |
1600 |
1400 |
1200 |
1000 |
800 |
600 |
Min Height |
mm |
2700 |
2350 |
2000 |
1700 |
1440 |
1240 |
1110 |
1005 |
900 |
792 |
685 |
578 |
485
|
Working Stroke |
mm |
800 |
800 |
800 |
800 |
800 |
760 |
690 |
595 |
500 |
408 |
315 |
222 |
145 |
Net Weight |
kg |
82.8 |
76.4 |
70 |
58 |
55 |
49 |
47 |
43.6 |
39.9 |
36.3 |
32 |
26.7 |
26.5 |
Rated Resistance |
kN |
150 |
200 |
250 |
300 |
Rated Fluid Pressure |
Mpa |
19.1 |
25.5 |
31.8 |
38.2 |
First Sustaining Load |
kN |
118--157 |
Pump Station Pressure |
Mpa |
15or20 |
Column Lifting Speed |
mm/s |
≥60 |
Column Descending Speed |
mm/s |
≥40 |
Diameter of Oil Cylinder |
mm |
100 |
Base Area |
cm2 |
113 |
109 |
Service Substance |
|
Coal 10 (M10)Emulsifier(or MDT10emulsifier)1-2% Emulsion |
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